Seymouria
Limnoscelidae
Diadectidae
Synapsida
Captorhinidae
Paleothyris
Araeoscelidia
Younginiformes
Mesosauridae
Eunotosaurus
Millerettidae
Microleter
Australothyris
Nyctiphruretus
Bradysaurus
Pareiasuchus
Scutosaurus
Odontochelys
Proganochelys
Macroleter
Ba_mesensis
Emeroleter
Rhipaeosaurus
Ba_bashkyricus
Nycteroleter
Procolophon
Owenetta
Barasaurus
Eudibamus
Belebey
Acleistorhinus
Lanthanosuchus